Motor barrow



Pl'il 25, 1933- J. HOFFMAN ET A1. 1,905,589

MOTOR BARROW GWW/Mago.

Apwri125,19313. J. HQFFMAN E-r AL 1,905,589

' MOTOR BARRow Filed Aug. 24, 1951 2 sheets-sheet l'2 Guttowago.

Patented Apr. 25, 1933 f-UNITED; STA

TES'

incassa PATENT ferriesc JOE HOFFMAN Ann HUGO HOFFMAN, or TWO nrvnns, wisconsin Moron BAnRoW f Appncauon mea August 24; 1931. semaine. 559,074.

This invention aims to provide a novel motor Vpropelled wheel barrow.

It is within the-province of the disclosure to improve''generally and to enhance the '5 utility of devices of that type to which the invention appertains. v VVith the above and other objects in view which will appear `as the' description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes n '15 the scope of what is claimed, without departing from the spirit of the invention- In the accompanying drawings Figure 1 shows in side elevation, a device constructed in accordance with the invention, parts being broken away; Y

Figure 2 is a rear elevation;

Figure 3 is a front elevation wherein parts are broken away.

The barrow forming the subject matter of this application comprises a body 1 which may be of any desired shape. As shown in Figure 1, but not of necessity, the body l comprises an inclined front wall 2 and a rounded rear wall 3, the walls 2 and 3 merging into the bottom of the body 1. The side walls of the body 1 are marked by the numeral 4. Around the upper edge of the body 1 extends an outstanding bead 5, beneath which, rearwardly extended, parallel handle bars 6 are engaged, the handle bars having flat forward ends 8 connected by securing elements 9 to the side walls 4 of the body 1. The handle bars 6 are engaged, and are held underneath the bead 5, by curved grips 10, attached by securing elements 11'to the side walls 4 of the body 1. `Grips 7 are rotatably mounted on the rear ends of the handle bars 6.

wall 3 of the body 1 are assembled dependmounted to turn,about vertical axes, theV Vithfthe handle bars 6, and with the rear castor frames carrying pairsy of castors 17, which support the barrow at its rear end.

On the platform 14 is secured a motor 18, preferably an internal combustion engine, although another kind of motor may be fur.- nished.' A horizontal exhaust pipe 19 is counected by securing elements 27 to the vertivcal rear portions of the hangers12. Aconnection 20 leads from the intermediate portion of the exhaustpipe 19'to the motor 18. 6@ The starter shaft for the motor 18' is `designated by the numeral 21, and carries a gear Y wheel 22 meshing Vwith a segment 23 on a shaft 24 journaled in the motor frame! The shaft 24 has a downwardly and laterally in- 65 clinedarm'25, carrying a pedal 26, located near to the `Yrightfhand-side of the machine, looking f0rwardl'y,as Figure 2 will show A'housing 30 is located beneath the body 1 and'is connected to the body 1 by abracket 70 31. Within the housing 30 is disposed a driven shaft 32, which extends longitudinah ly of the barrow. A brake mechanism 62 is `carried by the housing 30 and acts on the Shaft 32. on the rear end of the shaft 32 75 there'is a sprocket wheel 29.A There is a sprocket wheel 28 on the shaft of the motor 18. VThe sprocket wheels 29 and 28 are coni nected by a sprocket chain 33.

Any suitable means may be provided whereby one of the; grips 7 may be used to operate the brakemechanism 62, and whereby the other ofthe gripsl may be used to control Vthemotor 18. As shown, but not of necessity, a shaft 36"(Figure 1) is mounted to rotate Vin the right hand handle bar 6. The shaft 36V is connected at its rear end to the corresponding grip 7. On the shaft 36 there is an' inwardly extended arm 35 (Figure 2). The upper end of a link 34 is pivoted to the'inner end of the arm`35. The lower end of the link 34 is operatively connected with the brake mechanism 62.'V yBy meansof a shaftsimilar to the shaft 36, by 95 means'of an arm 37 on the `said shaft, and by means' of a link'48, the left hand Vgrip 7 in Figure 2 maybe connected with the motor or engine 18, to start and stop the Same- 'f i. 1o The differential mechanism-is indicated at 39 and is carried by the housing 30. The diderential mechanism 39 is operatively connected to the shaft 32. The transverse part of the differential mechanism 39 is connected to the bottom of the body 1 by supports 40, one of which is shown in Figure 3. The transverse shafts 41 of the differential mechanism are connected to ,the longitudinal shaft 32 in the usual way, the means for accomplishing this result beingl common, well known, and Vunworthy of specific de lineation. On the ends of the shaft 41 of the differential mechanism are sprocket wheels 42, connected by sprocketchains 43 with sprocket wheels 44 on the axles 45 journaled in bearings 46 on the sid-es 4 of the body 1. Ground wheels 47 aresecured to the sprocket wheels 44. 1

Through the instrumentality of the. pedal 26, the arm 25, the segment 23, the `gear wheel 22, and the shaft21, the engine 18 may be put into operation. -Thensh'aft of the engine drives the sprocket wheel 28, and the sprocket chain 33, together with the sprocket wheel 29, imparts rotationto the longitudinal shaft 32. Fromithe longitudinal shaft 32, the differential mechanism l39 transmits rotation to the sprocket wheels 42, by way of the transverse Vdifferential shaft sections 41. `The sprocket wheel .42 drives the chains 43, thefchains 43 operate the sprocket wheels 44,v and' the :sprocket wheels 44 turn the ground wheels 47.

The brake mechanism '62 maybe operated n by a train of parts includingfthe link 34, the armA 35 on the shaft `36 of Figure 1, the said shaft 36, .and the corresponding grip 7. The engine 18 is controlled from neoase wheels supported for rotation at the sides of the body and located intermediate the front and rear ends of the body, a differential disposed underneath the body in substantially vertical alinement with the center of rotation of the ground wheels, the differential including transverse shafts and a rearwardly extending housing, means z for suspending the dierential from the body means extended upwardly from the transversesl-rafts ofthe differenti-al for operativelyrconnecting those shafts with the ground wheels, a longitudinal shaft journaled in thehousing andoperatively connected with the transverse'shafts'of the differential, a motor,:means forsupporting the motor on the barrow in la'position behindthe-lbody,ga `driviI-rg connectionfbetween the mot-or and the longitudinal Ishaftfa brake mechanism Vcarried by the housing and 4acting on the .wardly upon the handles within reach of la person holding the handles. v

, In testimony that awe claim the foregoing asfour own, we have hereto affixed our signatures.V v n 1 JOE ,HOFFMAN :HUGO

the other grip 7 by 'a shaft,vlike the shaft 36, the arm 37, and the link-48r of Figure 2.

The general construction Ais Vsuch Athat heavy loads may be propelledinabarrow,

without difHculty, by a single operator, and n 4 the operator can controlthemovementof the barrow with the same ease and facility that he would control an automobile Ior othermotorpropelled vehicle. The various parts of the device maybe standard-automobile parts, andthe device, therefore, may

be assembled readily without' providinga n. large number of especially made elements. y

Having thus described the invention, what is claimed is j f 1. A wheel barrow comprising ,.a body, a ground wheel carried by the body, amot-or,

means for connecting the motor operatively with the ground wheel, lhandles progecting rearwardly from the body,",hangers mount'- ed onthe handles and carrying the motor,

and anV exhaust outlet for the motor, the

exhaust outlet being secured to the'` hangers,

to serve as a connecting brace between the hangers.

2. A wheel barrow comprising aV load- 

